1 files changed, 30 insertions, 0 deletions
diff --git a/devtools/client/inspector/flexbox/test/browser_flexbox_item_outline_exists.js b/devtools/client/inspector/flexbox/test/browser_flexbox_item_outline_exists.js
new file mode 100644
index 0000000000..eba6ec03f0
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+++ b/devtools/client/inspector/flexbox/test/browser_flexbox_item_outline_exists.js
@@ -0,0 +1,30 @@
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Test that the flex item outline exists when a flex item is selected.
+
+const TEST_URI = URL_ROOT + "doc_flexbox_specific_cases.html";
+
+add_task(async function () {
+  await addTab(TEST_URI);
+  const { inspector, flexboxInspector } = await openLayoutView();
+  const { document: doc } = flexboxInspector;
+
+  // Select a flex item in the test document and wait for the outline to be rendered.
+  const onFlexItemOutlineRendered = waitForDOM(doc, ".flex-outline-container");
+  await selectNode(".item", inspector);
+  const [flexOutlineContainer] = await onFlexItemOutlineRendered;
+
+  ok(flexOutlineContainer, "The flex outline exists in the DOM");
+
+  const [basis, final] = [
+    ...flexOutlineContainer.querySelectorAll(
+      ".flex-outline-basis, .flex-outline-final"
+    ),
+  ];
+
+  ok(basis, "The basis outline exists");
+  ok(final, "The final outline exists");
+});